Hey there!
Compounds with ionic bonds have higher melting points because of the forces needed to break through the strong forces of attraction holding it together.
Compounds with covalent bonds have lower melting points because less energy is needed to break the weaker forces of attraction.
So, your answer is C. Compound 1 is ionic, and compound 2 is molecular.
Hope this helps!
Answer:
this us a pm interesting question
Explanation:
good job
An example is when light goes from traveling on air to the water. A famous experiment that is done on many schools to prove this is the one with the pencil on a cup of water. I added both pictures so you are able to visualise what I'm trying to say. The pencil "bends" on the water because of a phenomenon called refraction. <span>When light enters water, it cannot move as fast as it </span>does in air, therefore, a<span>s the light enters the water, it </span>bends<span> away from its original path. Hope I was able to help!!</span>
B. Sugar is a pure substance.
It is sugar because sugar is made up of one atom or molecule.
A) penny is not correct because a penny is made up of copper, zinc, and tin.
C) ocean water is not correct because its made out of water (h2o) and salt.
D) iced tea is not correct because it takes many atoms to combine in order to make tea, then you have to add water and ice to make it an iced tea.
Hope this helps! :)
Answer:
Explanation:
Have the class stand up. Tell them that they will be flipping the penny (you will tell them when); each time they flip one half life will have passed. If their penny lands on heads, they are radioactive and have decayed and they should sit; if their penny lands on tails, they have not decayed and may remain standing.